Exhibit 99.1



           InterDigital to Host Conference Call to Discuss Impact of
          Final Award in Arbitration Proceeding with Nokia Corporation


           KING OF PRUSSIA, Pa.--(BUSINESS WIRE)--July 5, 2005--InterDigital
Communications Corporation (Nasdaq:IDCC), a leading designer,
developer and provider of wireless technology and product platforms,
announced today that it will host a conference call to discuss the
impact of the Final Award in the arbitration proceeding between
InterDigital Communications Corporation, InterDigital Technology
Corporation (ITC), one of the company's wholly-owned subsidiaries, and
Nokia Corporation (Nokia). The Final Award relates to Nokia's royalty
obligations on its worldwide sales of 2G GSM/TDMA and 2.5G
GSM/GPRS/EDGE products under its existing patent license agreement
with ITC.
           During the conference call, company executives will provide some
additional insights relating to the Final Award. In addition to
reiterating information contained in the company's press release dated
July 1, 2005, InterDigital's executives will discuss the following
items:

    --  Background on the Nokia patent license agreement

    --  The Arbitral Tribunal's determination of the following issues
        relating to Nokia's patent license agreement with ITC:

        --  Sony Ericsson and Ericsson qualify as major competitors
            under the Nokia patent license agreement and, as such,
            ITC's license agreements with Sony Ericsson and Ericsson
            establish the framework for Nokia's royalty obligations
            under its patent license agreement for 2G and 2.5G
            handsets and infrastructure sales, respectively.

        --  In identifying the applicable handset royalty rates, the
            Arbitral Tribunal took into account Nokia's higher level
            of sales volume as compared to Sony Ericsson.

        --  The establishment of a relatively short time frame for
            Nokia to submit payment to InterDigital for royalties
            associated with sales of covered products from January 1,
            2002 through June 30, 2005.

        --  In addition to its royalty obligations from January 1,
            2002 through June 30, 2005, Nokia is required to pay
            royalties to InterDigital using the rates identified by
            the Tribunal and applying the other royalty-bearing terms
            of the Ericsson and Sony Ericsson Agreements for sales
            from July 1, 2005 to December 31, 2006.

    --  InterDigital estimates that Nokia's royalty obligations for
        covered infrastructure and handset sales from January 1, 2002
        through December 31, 2003 will be approximately $112 million.
        In addition, InterDigital estimates that Nokia's royalty
        obligations for sales of covered products during 2004 is in
        the range of $50 million to $55 million. For 2005 and 2006
        covered product sales, using publicly-available forecasts, the
        company estimates that Nokia's royalty obligations will be in
        the range of $70 million to $90 million, depending upon
        whether Nokia avails itself of the prepayment option
        applicable to the remainder of 2005 and the full year 2006.
        Consistent with the terms of the Ericsson and Sony Ericsson
        agreements, Nokia's 2G and 2.5G royalty obligations would be
        paid-up after December 31, 2006. All of the above amounts
        exclude awarded interest. The decline in the average annual
        royalties in the 2005 and 2006 time frame is due to possible
        prepayment discounts and the diminishing amount of 2G and 2.5G
        TDMA-based devices that are projected to be sold as 3G product
        sales become a larger part of the market.

    --  Based on InterDigital's application of the Nokia Tribunal's
        award and updated information as to Samsung's sales for the
        years 2002 through 2004, the company updated guidance relative
        to Samsung's royalty obligations. Specifically, prior guidance
        had stated that Samsung would owe InterDigital approximately
        $22 million to $27 million for 2002 sales of covered product.
        In addition, based on Samsung prepaying its 2003 and 2004
        royalties, the company previously estimated that it would have
        recorded revenue of approximately $20 million to $24 million
        for 2003 sales. The company reaffirmed the original guidance
        but indicated that the actual amounts should be somewhat
        higher based on prepayment discounts for past sales no longer
        being available.

           InterDigital will host a conference call on Tuesday, July 5, 2005
at 8:00 a.m. Eastern Daylight Time, to discuss the Final Award and its
impact on the company. To access the conference call within the U.S.,
please dial 1-800-289-0569. International participants may access the
call by dialing 1-913-981-5542. Please dial in to the call by 7:50
a.m. Eastern Daylight Time on July 5, 2005 and ask the operator for
the InterDigital conference call.
           InterDigital also will provide access to the call on its web site
at: www.interdigital.com. In addition, a replay of the conference call
will be available for one week after completion of the call. To access
the recorded replay, dial 1-888-203-1112 and use the confirmation code
1690544. International participants may access the replay by dialing
1-719-457-0820 and using the confirmation code 1690544. A replay of
the conference call also will be available on the company's web site.

           About InterDigital

           InterDigital designs, develops and provides advanced wireless
technologies and products that drive voice and data communications.
The company offers technology and product solutions for wireless
applications that deliver time-to-market, performance and cost
benefits, as well as product differentiation advantages to its
commercial and government/military customers. InterDigital has a
strong portfolio of patented technologies covering 2G, 2.5G, 3G and
802 standards, which it licenses worldwide. For more information,
please visit InterDigital's web site: www.interdigital.com.
InterDigital is a registered trademark of InterDigital Communications
Corporation.

           This press release contains forward-looking statements regarding
our current beliefs and expectations as to the Final Award received in
the Nokia Arbitration, the application and impact of the Final Award
to the license agreements with Nokia and Samsung and their royalty
obligations, and amounts due from Nokia and Samsung. Words such as
"estimates", "should" or similar expressions are intended to identify
such forward-looking statements.
           Forward-looking statements are subject to risks and uncertainties,
and actual outcomes could differ materially from those expressed in or
anticipated by such forward-looking statements due to a variety of
factors including, without limitation, those contained herein and: (i)
InterDigital's interpretation of and Nokia's compliance with the Final
Award; (ii) adjustments in the estimated and actual amounts of sales
of Nokia and Samsung covered products derived from InterDigital or
third party data or assumptions, or inaccuracies in sales figures
supplied during the Nokia arbitration; (iii) the company's application
of an available prepayment option; (iv) an interpretation or
application of the Final Award by the panel in the Samsung arbitration
different from the company's interpretation and application; (v)
unanticipated results in enforcement proceedings relating to the Final
Award; and (vi) other factors set forth in the company's July 1, 2005
and March 17, 2003 press releases. InterDigital undertakes no duty to
update any forward-looking statements, whether as a result of new
information, future events or otherwise.


    CONTACT: InterDigital Communications Corporation
             Janet Point, 610-878-7800
             janet.point@interdigital.com